solar glass tube - SJL-VT

Primary competitive advantage:, 1.CE,CCC,ISO9001,ISO14001, 2.15 Years'Warranty, 3.Delivery:7-20Days - more info check here: http://www.sourcingappliances.com/solar-glass-tube-30031674/

Quick Brief

Type: Solar Water Heater Parts Place of Origin: Zhejiang China (Mainland) Brand Name: SJL Model Number: SJL-VT Heating System: Thermosyphon (Passive) Circulation Type: Direct / Open Loop (Active) Connection Type: Direct-Plug Certification: CE Type: Evacuated Tube

Product Features:

Primary competitive advantage:

1.CE,CCC,ISO9001,ISO14001

2.15 Years'Warranty

3.Delivery:7-20Days

Business Terms:

Price Terms:FOB,CIF,EXW

Payment Terms: T/T,Western Union,MoneyGram,L/C

Minimum Order: Negotiatable

Delivery Port: Customized

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Specifications and Product Details:

Item Name:

solar glass tube

Item No.:

SJL-VT

Description:

All glass evacuated tubes are the key companent of solar collectors. The evacuated tube is similar to a conventionak dewar flaskk and consists of two borosilicate glass tube, a glass with high chemical and thermal shock resistance. The inner tube is coated with a sputtered solar selective surface. This coated inner tube is closed at one end and sealed at the other end to the outer tube. The annular space between the outer tube and inner tube is evacuated to virtually eliminated heat loss by conduction and convection.

Parameter:

1). Outer Diameter: 47mm / 58mm

2). Inner Diameter: 37mm / 47mm

3). Size of tube: 1500mm / 1800mm / 2100mm

4). Meterial: Borosilicate Glass 3.3

5). Thickness of tube: 1.6±0.1mm,2.0±0.1mm

6). Absorbing Coating: Tri-elements caoting (ALN/ALN-SS/CU) or AL-N-AL coating

7). Thermal Expansion: 3.3*10-6/k

8). Absorption of selective coating: =94%-96%(AM1.5)

9). Emission of selective coating: 4%-6%(80±50)

10). Cofficient of everage heat loss: 0.6-0.7W

11). Vacuum Rate: 5*103pa